#173457#173457

#173457 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.2% C 0.072 H 254.5°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#173457
RGB	rgb(23, 52, 87)
HSL	hsl(213, 58%, 22%)
HSV	hsv(213, 74%, 34%)
CMYK	cmyk(73.6%, 40.2%, 0%, 65.9%)
CIE-LAB	lab(21.30, 2.34, -24.33)
CIE-LCH	lch(21.30, 24.45, 275.49°)
OKLab	oklab(32.2% -0.0192 -0.0692)
OKLCH	oklch(32.2% 0.072 254.5)
XYZ	xyz(3.3010, 3.3259, 9.4830)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173457 #573A17

analogous

#175457 #173457 #1A1757

triadic

#173457 #571734 #345717

tetradic

#173457 #571754 #573A17 #17571A

square

#173457 #571754 #573A17 #17571A

split-complementary

#173457 #571A17 #545717

monochromatic

#060E18 #0A1727 #173457 #245187 #316EB8

Accessibility & contrast

On white

12.61

#173457 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#173457 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173457

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173457	#FFFFFF	#000000	##FFFFFF
##173457	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243658

Deuteranopia (green-blind)

#1B3056

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173457;
/* rgb */ color: rgb(23, 52, 87);
/* oklch */ color: oklch(32.2% 0.072 254.5);

Tailwind

colors: {
  custom: {
    50: '#5d6b86',
    500: '#173457',
    950: '#000000',
  },
}

SCSS

$custom: #173457;
$custom-light: #5d6b86;
$custom-dark: #000000;

JSON

{
  "hex": "#173457",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 87
  },
  "hsl": {
    "h": 212.813,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32199,
    "c": 0.07179,
    "h": 254.5
  },
  "luminance": 0.03326
}

Semantic roles & 50–950 ramp

primary

#173457

secondary

#8E693C

accent

#9B46E1

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #173457

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →